Well, in the much longer term they have usually mentioned they would like to use a more secure/private foundation (more in the direction of Qubes/Redox/Fuchsia)

Well, in the much longer term they have usually mentioned they would like to use a more secure/private foundation (more in the direction of Qubes/Redox/Fuchsia) with a compatibility layer for Android apps if they have the resources to do so.